CVE-2026-9093

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions. The buildSp function in object/saml_sp.go never sets AudienceURI on the gosaml2 SAMLServiceProvider struct and never inspects WarningInfo.NotInAudience. This allows assertions issued for other service providers to be accepted by Casdoor.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
29.0%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 2, 2026

Advisory Details (1)

Auto-updated Jun 20, 2026
No patch confirmed yet. Sources: cert.
cert

VU#780781 - Casdoor contains multiple authentication bypass and access management vulnerabilities

https://kb.cert.org/vuls/id/780781

Vendor Advisories for CVE-2026-9093(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
gogithub.com/casdoor/casdoor—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/casdoor/casdoor———

Data Freshness Timeline

(refreshed 9× in last 7d / 70× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 178 total refreshes for this CVE.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:23 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-21 15:25 UTCEPSS rescore
  6. 2026-07-20 17:08 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 02:29 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 10:16 UTCGHSA enrichment
  12. 2026-07-16 02:54 UTCGHSA enrichment
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-13 22:31 UTCEPSS rescore
  16. 2026-07-13 06:13 UTCEPSS rescore
  17. 2026-07-12 05:46 UTCEPSS rescore
  18. 2026-07-12 00:56 UTCGHSA enrichment
  19. 2026-07-11 19:51 UTCGHSA enrichment
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-09 19:10 UTCEPSS rescore
  22. 2026-07-08 22:47 UTCGHSA enrichment
  23. 2026-07-08 18:07 UTCGHSA enrichment
  24. 2026-07-08 15:16 UTCEPSS rescore
  25. 2026-07-07 13:46 UTCEPSS rescore
Show 75 more
  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 02:31 UTCEPSS rescore
  4. 2026-07-05 02:30 UTCEPSS rescore
  5. 2026-07-04 06:31 UTCEPSS rescore
  6. 2026-07-04 06:31 UTCEPSS rescore
  7. 2026-07-02 23:25 UTCGHSA enrichment
  8. 2026-07-02 12:55 UTCGHSA enrichment
  9. 2026-07-01 20:26 UTCGHSA enrichment
  10. 2026-07-01 15:07 UTCEPSS rescore
  11. 2026-07-01 13:51 UTCGHSA enrichment
  12. 2026-07-01 09:11 UTCGHSA enrichment
  13. 2026-07-01 02:54 UTCGHSA enrichment
  14. 2026-06-30 23:22 UTCEPSS rescore
  15. 2026-06-30 06:00 UTCGHSA enrichment
  16. 2026-06-30 01:46 UTCGHSA enrichment
  17. 2026-06-29 19:42 UTCGHSA enrichment
  18. 2026-06-29 13:41 UTCGHSA enrichment
  19. 2026-06-29 00:53 UTCGHSA enrichment
  20. 2026-06-28 20:39 UTCGHSA enrichment
  21. 2026-06-28 16:25 UTCGHSA enrichment
  22. 2026-06-28 14:07 UTCEPSS rescore
  23. 2026-06-28 11:34 UTCGHSA enrichment
  24. 2026-06-28 07:19 UTCGHSA enrichment
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-28 02:59 UTCGHSA enrichment
  27. 2026-06-27 22:45 UTCGHSA enrichment
  28. 2026-06-27 18:31 UTCGHSA enrichment
  29. 2026-06-27 14:17 UTCGHSA enrichment
  30. 2026-06-27 10:02 UTCGHSA enrichment
  31. 2026-06-27 05:48 UTCGHSA enrichment
  32. 2026-06-27 03:08 UTCEPSS rescore
  33. 2026-06-27 01:34 UTCGHSA enrichment
  34. 2026-06-26 20:59 UTCGHSA enrichment
  35. 2026-06-26 16:45 UTCGHSA enrichment
  36. 2026-06-26 02:05 UTCGHSA enrichment
  37. 2026-06-25 20:56 UTCGHSA enrichment
  38. 2026-06-25 16:42 UTCGHSA enrichment
  39. 2026-06-25 13:50 UTCEPSS rescore
  40. 2026-06-25 12:18 UTCGHSA enrichment
  41. 2026-06-25 08:04 UTCGHSA enrichment
  42. 2026-06-24 22:42 UTCGHSA enrichment
  43. 2026-06-24 16:36 UTCGHSA enrichment
  44. 2026-06-24 14:05 UTCEPSS rescore
  45. 2026-06-23 21:33 UTCEPSS rescore
  46. 2026-06-22 14:25 UTCEPSS rescore
  47. 2026-06-21 14:56 UTCEPSS rescore
  48. 2026-06-21 01:59 UTCEPSS rescore
  49. 2026-06-19 19:26 UTCEPSS rescore
  50. 2026-06-19 00:24 UTCGHSA enrichment
  51. 2026-06-18 17:52 UTCEPSS rescore
  52. 2026-06-18 02:48 UTCGHSA enrichment
  53. 2026-06-17 22:35 UTCGHSA enrichment
  54. 2026-06-17 18:02 UTCGHSA enrichment
  55. 2026-06-17 17:53 UTCEPSS rescore
  56. 2026-06-17 13:16 UTCGHSA enrichment
  57. 2026-06-17 09:03 UTCGHSA enrichment
  58. 2026-06-17 04:19 UTCGHSA enrichment
  59. 2026-06-17 00:06 UTCGHSA enrichment
  60. 2026-06-16 19:52 UTCGHSA enrichment
  61. 2026-06-16 17:53 UTCEPSS rescore
  62. 2026-06-16 15:38 UTCGHSA enrichment
  63. 2026-06-16 10:23 UTCGHSA enrichment
  64. 2026-06-16 06:04 UTCGHSA enrichment
  65. 2026-06-16 01:49 UTCGHSA enrichment
  66. 2026-06-15 21:36 UTCGHSA enrichment
  67. 2026-06-15 17:49 UTCEPSS rescore
  68. 2026-06-15 17:49 UTCEPSS rescore
  69. 2026-06-15 12:53 UTCGHSA enrichment
  70. 2026-06-15 05:55 UTCGHSA enrichment
  71. 2026-06-15 01:42 UTCGHSA enrichment
  72. 2026-06-14 23:18 UTCEPSS rescore
  73. 2026-06-14 21:28 UTCGHSA enrichment
  74. 2026-06-14 17:14 UTCGHSA enrichment
  75. 2026-06-14 13:00 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-9093?
CVE-2026-9093 is a critical vulnerability published on May 28, 2026. In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions. The buildSp function in object/saml_sp.go never sets AudienceURI on the gosaml2 SAMLServiceProvider struct and never inspects…
When was CVE-2026-9093 disclosed?
CVE-2026-9093 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9093 actively exploited?
CVE-2026-9093 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9093?
CVE-2026-9093 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9093?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9093, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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